Brake for baggage trucks



April 13 1926. 1.5 8O ,801

H. H. BARSBY BRAKE FOR BAGGAGE TRUCKS Filed Nov. '7, 1925 Patented Apr. 13, 1926,

burr

r eraires PATENT QFFICE.

HARRY H. BARSBY, D13 DENVER, COLORADO.

BRAKE ron BAGGAGE ravens.

Application filed November To all whom it may concern:

Be it known that I, HARRY H. Bnnsn'y,

' Trucks; and I do declare the following to be a full, clear, and exactdescriptionof the invention, such as will enable; others skilled in the art to whichlt appertamsto make and use the same, refercncebeing had to the accompanying drawings. and to the characters of reference marked. thereon, which form a part of this application. 7

This inventionrelates to improvements in brakes for. baggage trucks.

It. is well known that baggage trucks of the type employed by rail *ays for receiving baggage from baggage cars and transporting the same, are often the. causeof se'riousac ciden'ts and damages due to the fact that they will be blown off from the platform by strong Windsor will become accidentally moved to positionswhere they should not be as the attendant frequently forgets to block the wheels. I I

To obviate-such accidents; it has been proposed to apply to the truck SOlDGfOllll of brake that will be'automaticallyset when thetruok is not in useor some sort ofbrake that can be conveniently set when the attendant no longer desires to employ the truck. It has been found that these brakes for one reason or another are unsatisfactory and they havetherefore failed to meet the.

requirements of the situation. It is the object of this invention to produce a brake of a very simple construction that can be applied to existing trucks without necessitating any changes in the construction. thereof and which will not add materially to the cost of the truck. 7

My invention briefly described consists in attaching to the front axle of a truck a yoke member to which the tongue is slidably connected. When a truck isin use, thetongue extends in the usual position, but. when the truck. is not; in. use; the tongueis moved rearwardly and then rotated until; it assumes an upright. position with its lower: end resting .upon the platform and forming a friction brake; which is sufficient to, prevent the truck: from. being moved accidentally or by windsof. the-usual severity.

4 in Figure 3;

7, 1925. Serial No. 67,559.

In order to describe my invention so that its construction and operation can be nnore readily understood, I shall have reference to the accompanying drawing in which the preferred embodiment shown and in which:

Fig. i shows a side elevation of the front end of a truck; the position of the tongue when it serves the function of a brake being shown in full lines. and the position when in use being, indi "ated by dot and dash lines;

Figure 2 is a sectional view taken 'inth'e directionof line 22, in. Figure l andshows I the relationship of the tongue andthe-yoke piece when the tongue occupies its" operative position; v

I Fig. 3 is a detail of the yoke piecelooking in the direction of arrow 8 in. Fig. i;

F i is a side elevation of the part shown in Figure 8 looking in the direction of arrow Fig. 5 is a Figure 2;

Fig. 6 is a vertical section through the yoke pieee'and shows the manner in which the tongue is held in position when serving as a brake; and e V Fig. 7 is a detail showing a slightly modisection taken on line tied form of construction.

In; the drawing numeral 1 ,designates the platform of the truer and 2 the fifth wheel to which the frontaxle 3 is pivotally secured in the old'and well known manner. Secured to the front axle is a'yoke piece a which is of a shape indicated in Figure 2. At the front end of this yoke piecewhere the two sides join, it is provided wlth two spaced flanges 5 and 6 which form a guideway 7 s that cooperates with a strap 8 that is secured to the'tongue in the manner shown in Figure 1. The central portion 9 of the yoke member is somewhat narrower than the length of the flanges 5 and 6 so as to form a notch or recess 10 in the manner clearly shown in Figure 3. The strap member 8 which is secured to the tongue has its ends 11 and 12 perforatedfor the reeeptionof bolts or screws-13133 meansiofwhichit is secured to the tongue. The portionIindicatedby' letter A is spaced away: from the surface of the tongue so asto form a slot 14 of suifieientthickness to receive the part 9 of the yoke member Near the upper endof. this con- 15. andextending tothe upper endithereofso as to provide a space 15 whose width is cient to receive the part 9 when the sex parts are in the position shown in Figure t3,

Secured to the lower end of the tongue is a w ght 17 of metal or other suitable inaterial which has suiiicient mass to produce the necessary friction agai the surface ot the platform for hold the truck. lVhen the truck is not in use, the tongue is moved back into the position shown in Figure 1 and held in this position by means of shock 18. It will be obvious that with the end of the tongue resting on the surface of the platform. considerable rcsistai'ice to iaovenici'it will be produced. This can be increased by providing the lower end oi weight 1! with some friction substanc as rubber or with a number ct sharp prongs which cut int-i the wood of a wooden plat- :torm, or the lower surface of the weight 11' may merely be roughened. Tfhen the truck is to be used the tongue is rotated from the vertical position into a substantial horizontal position and then pulled forwardly until the transverse part 19 oi? member 8 cuters into the notch 10. Tue space between the inner surfaces of the flanges 5 and G or the width of the channel 7 is preferably just suliicient to receive the connecting strap 8 so that when the parts are in the po sition indicated by dotted lines in Figure 1 and shown in "full. lines in Figure there will be very little sidewire movement of the tongue 20, wherefore, the truck can be steered as well as it the tongue were secured to it in the ordinary manner.

in Figure 7 I have shown a modified form in which, instead. of having the flanges K and 6 integral in the manner shown in Figures 3 and 4-, angle irons and. G are see ,red the yoke t by means of rivets 21. This construction is the mechanical equivalent of that showigi in the other figures, but simplihes the manufacture to some extent and may be pieterred by some to the construction shown in the other figures.

It will be apparent from the above description that I require no change whatever to be made in the construction of the truck, but merely attach the yoke member to the front axle and attach the strap meni 'ier 8 to the tic ue. The parts have been so dcned tl aajerial and the tongue that. is now emplc f can be used my roved con struction by merely aornng to it the strap 8 and the weight 17. l

Having now described the invention, what i claim as new is:

1. A safety brake for baggage trucks com prising, in combination, ayoke member having its ends attached to the front axle, a tongue slidably connected with said yoke and means permitting said tongue to be rotated with respect to the yoke member soas the shape and sire of the tongue to assume a substantially vertical position and to have its lower end supported upon the surface that supports the truck.

2. A safety brake for baggage trucks provided with a front axle that may be rotated other portion spaced from the tongue a distance substantially equal to the width of that portion of the yoke member that joins the arms and means for holding the tongue against movement in the plane of the yoke member when in operative position.

3. A brake for baggage trucks, comprising, in combination, a substantially V-shaped yoke member adapted to have its ends connected with a pivoted axle, a tongue and means for securin the tongue to the yoke member so as to permit it to occupy a position parallel with the plane of the yoke and to be moved into a position at right angles to the plane of the yoke, said means permitting a sliding of the tongue with respect to the yoke member when passing from one position to the other.

4. A brake for baggage trucks comprising, in combination, a yoke member sup ported on the truck, a tongue and means for connecting the tongue to the yoke so that it can be moved from a position in which it is substantially parallel to the plane of. the yoke and into a position in which it is substantially perpendicular to the plane of the yoke, said means comprising a member secured to the tongue and embracing a portion of the yoke, said member having parts thereof lying in separated planes so as to be spaced different distances from the surface of the tongue.

5. A brake for baggage trucks, comprising, in combination, a yoke member supported on the truck, a tongue, means for con necting the tongue to the yoke so that it can be moved from a position in which it is substantially parallel to the plane of the yoke and into a position in which it is substantially perpendicular to the plane of the yoke, said means comprising a member secured to the tongue and embracing a portion o1 the yoke, said member having parts thereof lying in separate planes so as to be spaced different distances from, the surface of the tongue, and means for preventing the tongue from moving in the plane of the yoke.

6. A safety device for baggage trucks c01nprising, in combination, a- V-shaped bracket having two spaced fianges'near its vertex,

said flanges being parallel with the bisector of the angle between the two arms of the bracket, a tongue, a guide member attached to the tongue and embracing that portion of the bracket between the flanges, said guide member having a portion thereof spaced from the tongue a distance equal to the thickness of the embraced portion of the bracket and another portion spaced from the tongue a distance equal to the Width of the 1 embraced portion of the bracket whereby the tongue may be rotated with respect to the bracket.

In testimony whereof I afiix my signature.

' HARRY H. BARSBY. 

